Merge pull request #468 from AppFlowy-IO/fix_language_gen

fix: generate en language as default

.github/workflows/dart_lint.yml

@@ -30,7 +30,7 @@ jobs:
       - name: Code Generation
         working-directory: frontend/app_flowy
         run: |
-          flutter packages pub run easy_localization:generate -S ./assets/translations -f keys -O lib/generated -o locale_keys.g.dart
+          flutter packages pub run easy_localization:generate -f keys -o locale_keys.g.dart -S assets/translations -s en.json
           flutter packages pub run build_runner build --delete-conflicting-outputs
       - name: Run Flutter Analyzer
         working-directory: frontend/app_flowy